公开(公告)号：US4088301A

公开(公告)日：1978-05-09

申请号：US741059

申请日：1976-11-11

申请人： Gerhard Ehmig

发明人： Gerhard Ehmig

IPC分类号： F16J13/16 ,  F16K51/02 ,  F17C13/06 ,  F16K1/00

CPC分类号： F16K51/02

摘要： In a valve arrangement in which a metallic valve body has an edge portion elongated in a closed loop and can be moved into a position of sealing engagement over the entire length of the loop with a cooperating seating surface in a vacuum line, and the engaged edge portion is pressed against the seating surface with a pressure sufficient to form a vacuum tight seal, the invention provides a hollow valve body whose cavity is sealed by a first wall portion. A peripheral part of the wall portion envelops a central part and is joined to at least one other wall portion along the closed loop of the edge portion. The first wall portion slopes inward of the cavity from each longitudinal section of the loop toward the central part. When a gas under sufficient pressure moves the central part of the first wall portion outward of the cavity, the peripheral part and the joined edge portion expand, and the edge portion is pressed against the seating surface.

摘要翻译： 在阀装置中，其中金属阀体具有在闭合环中伸长的边缘部分，并且可以在真空管线中具有配合的就座表面，在环的整个长度上移动到密封接合位置，并且接合边缘 本发明提供了一种中空阀体，其空腔由第一壁部分密封。 壁部分的周边部分包围中心部分并且沿着边缘部分的闭合环连接到至少一个其它壁部分。 第一壁部分从环的每个纵向部分朝向中心部分向内倾斜。 当充分压力下的气体将第一壁部分的中心部分移到空腔外部时，周边部分和接合的边缘部分膨胀，并且边缘部分被压靠在座面上。